PHR1540

Letrozol

Pharmaceutical Secondary Standard; Certified Reference Material

• Synonym(e): Letrozol, 4,4′-(1H-1,2,4-Triazol-1-ylmethylen)-bisbenzonitril
• Empirische Formel (Hill-System): C₁₇H₁₁N₅
• CAS-Nummer: 112809-51-5
• Molekulargewicht: 285.30
• MDL-Nummer: MFCD00866241
• UNSPSC-Code: 41116107
• PubChem Substanz-ID: 329823451
• NACRES: NA.24

Eigenschaften

• Qualität: certified reference material; pharmaceutical secondary standard
• Qualitätsniveau: 300
• Agentur: traceable to Ph. Eur. Y0000685; traceable to USP 1356971
• API-Familie: letrozole
• Analysenzertifikat (CofA): current certificate can be downloaded
• Verpackung: pkg of 1 g
• Methode(n): HPLC: suitable; gas chromatography (GC): suitable
• Anwendung(en): pharmaceutical (small molecule)
• Format: neat
• Lagertemp.: 2-30°C
• SMILES String: N#CC(C=C1)=CC=C1C(N2C=NC=N2)C3=CC=C(C#N)C=C3
• InChI: 1S/C17H11N5/c18-9-13-1-5-15(6-2-13)17(22-12-20-11-21-22)16-7-3-14(10-19)4-8-16/h1-8,11-12,17H
• InChIKey: HPJKCIUCZWXJDR-UHFFFAOYSA-N
• Angaben zum Gen: human ... CYP19A1(1588)

Beschreibung

Allgemeine Beschreibung

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.
Letrozole is used for the treatment of breast cancer in hormone-dependent postmenopausal patients. The drug works by blocking the synthesis of estrogen, a causative agent for cancer.

Anwendung

Letrozole may be used as a pharmaceutical reference standard for the determination of the analyte in biological/environmental samples and pharmaceutical formulations by various chromatography techniques.

These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Biochem./physiol. Wirkung

Letrozol ist ein nicht-steroidaler Aromatase-Inhibitor der dritten Generation. Es ist ein kompetitiver Inhibitor des Aromatase Enzymsystems und verhindert so die Umwandlung von Androgenen zu Östrogenen. Letrozol hemmt Aromatase durch kompetitive Bindung an das Häm der Cytochrom-P450-Untereinheit des Enzyms, was zu einer Abnahme der Östrogen-Biosynthese in allen Geweben führt.

Hinweis zur Analyse

These secondary standards offer multi-traceability to the USP, EP and BP primary standards, where they are available.

Sonstige Hinweise

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Fußnote

To see an example of a Certificate of Analysis for this material enter LRAA4186 in the slot below. This is an example certificate only and may not be the lot that you receive.

Empfohlene Produkte

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Sicherheitshinweise

• Piktogramme: GHS08
• Signalwort: Warning
• H-Sätze: H361fd,H373
• P-Sätze: P202 - P260 - P280 - P308 + P313 - P405 - P501
• Gefahreneinstufungen: Repr. 2 - STOT RE 2
• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable